Weekly
Report for Week Ending November 9, 2006
Past Weekly Reports
There will be no LIGO
Executive Committee scheduled Monday, November 13, 2006 due to the Dedication of the LIGO Science
Education Center
in Livingston.
Special Announcements:
Weekly
Report Highlights
Last weekend we held a very successful LSC
meeting at MIT. Virgo guests at the
analysis group face-to-face meetings, and then at the LSC meeting proper, got a
sense of the pace of LSC data analysis work.
(One was quoted as describing what he saw as a "war machine,"
evidently, it was meant as a compliment.)
Each analysis group showed good progress on S5 data analysis, and
presented publication plans. The LSC
will now need to push to get results reviewed in time for the December meetings
(Texas, and
GWDAW.)
The LSC meeting was followed by a 1.5 day
meeting between data analysts and numerical relativists. It was a very fruitful interchange between
the two communities, who learned in real time to speak a common language. The prospects look excellent for good
scientific interaction in the near future.
LIGO
Laboratory Administration (Lindquist)
STATUS OF LSC MOUs
(Lloyd)
PROPERTY MANAGEMENT (Luna)
>
- Assisted the Anamaria Effler with packing, shipping and preparation of a
Commercial Invoice for US Customs clearance of two FSS Boards to the Max
Planck Institute for Gravitational Waves in Germany (P. Kwee). Account
Number LIGO.HAN-2.7- NSFLIGO.FY02OF.
- Provided assistance to the General Computing
Group with the shipping of 5 Laptops and 1 Projector from MIT to LLO. Account Number LIGO.DIR 1.1.1
NSFLIGO.FY02ON.
- Created Property records for the new Ford truck
and the Toyota
forklift at LLO.
- Tagged and created Property records for one
Laser System and one Pulse Generator for Lee Cardenas at CIT.
DOCUMENT CONTROL CENTER (Turner, Mak)
>From: Linda Turner -
turner@ligo.caltech.edu>
- Attended the LSC and continued to help collect
and process presentations.
Supported Marie Woods in set-up, registration, and breaks and
meals.
- Continued working on migration of data to new
data management system, fielding questions from those using the test
system, and organizing training tactics.
- Participated as member of Editorial Advirsory board for Document Magazine, in setting out
article content and authors for the 2007 magazine issues, as well as
receiving assignments for monthly e-mail newsletter, and weekly blog oversight.
>From: Cleveland Mak
<mak_c@ligo.caltech.edu>
- While it was noted about a month ago that the
scanned "T" category documents were complete after being renamed
and transferred to their final filing location, in actuality all scanned
documents also remained in DCC OUT.
In other words, I need to verify that each and every one of these
files currently exist in docspublic
"T" before I delete the files.
There are several hundreds of documents that need
verification. I've already come across
several pdf files that don't exist in docspublic and these files also have to be renamed and
extracted from their respective file folders before being transferred
over. Once this is complete, I need
to go to docspublic "T" and take all
those scanned pdf files that are currently in
file folders, extract them from the folders, rename if necessary, and
finally remove the folders. This
will be a very tedious task.
- Scanning Update - progress continues on Travel
Expense Reports.
FINANCIAL SYSTEMS (Funaro,
Brambila, Kaufman)
>
>From: "Brambila,
Ruth" <Ruth.Brambila@caltech.edu>
- Completed change order #12 to Stokes and
submitted to vendor.
- Completed the package for Change order #35 to
Support Services and routed.
- Completed change order #17 to University of Florida
and routed it for approvals.
- Responded to the audit request on subcontracts that
fall under A-133.
>From: Florence Kaufman <fkaufman>
- Completed and posted the reports as of the end
of October for both the FY2006 and FY2007.
- Completed and sent out report for the Visitors
Award as of the end of October.
- Received notification that all but one of the
new accounts both fabrication and non fabrication accounts have been set
up. Working with Sponsored Research
to get the remaining account set up and then I will send out notification
that the accounts are ready for use.
- Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport.
(For passwords contact Florence) Access to the monthly reports has not
yet been given to all account managers pending a determination as to the
most appropriate method to do this.
SUBCONTRACTS MANAGEMENT (Jasnow, Salone)
>From: Gina Salone
<gsalone@ligo.caltech.edu>
- [We have received the MIT proposal for FY 2007
and are adjusting the budgets accordingly.
We have a slight holdup pending opening a new account and this has
delayed payment of the most recent invoice. We are however, addressing this as
quickly as possible. –pel]
>From: Ed Jasnow
<jasnow@ligo.caltech.edu>
- The contract for the Advanced LIGO HAM single
stage seismic isolation design has been signed by HPD and is being FedEx'd to Caltech for execution. The kickoff meeting is scheduled for
Wednesday, November 15.
- Efforts are still ongoing to secure approval
from the Louisiana State Fire Marshal for the LLO SEC to allow a permanent
Certificate of Occupancy. The open
issue is heating or insulation of the 300,000 gallon water tank. The issue is being pursued by the SEC
architect, Eskew-Dumez-Ripple.
PROPOSALS and REPORTS (Lindquist)
This week we requested input for the monthly
report for the NSF. It is due to the NSF
mid next week.
CHANGE CONTROL/CONTINGENCY MANAGEMENT
(Lindquist)
- There are no open change requests.
HUMAN RESOURCES (Akutagawa)
>From: Cindy Akutagawa
<cindy@ligo.caltech.edu>
- A Staffing
Committee meeting was held on Monday, November 6. The minutes and action items from the
meeting are in progress and when completed will be posted on the SC web
page.
Quality/Safety (Tyler)
>From: Bill Tyler tyler@ligo.caltech.edu
Nothing significant to
report this week.
LIGO Hanford Observatory (LHO) and Interferometer
Operations (Raab)
Summary
of S5 Activities at LIGO Hanford
Observatory (compiled by M. Landry)
H1 was offline for the first few days this week, down
for ISCT4 table
floating. The 2k has had its dark port table floated for several
years; in order to improve the H1-H2 stochastic analysis, it was time to float
the 4k's. The 4k returned to excellent range ~15Mpc immediately after the
table work. We've suffered from high
microseism at times since then, with decays in range on the order of 2Mpc
in H1.
Extremely high winds at the beginning of the week,
plus commissioning (table floating) activity, resulted in reduced duty cycles
(again) for the past week: 49% on H1, and 57% on H2.
Some S5/commissioning highlights from the LHO elog are bulleted below:
- summaries:
range
& duty cycle weekly, IFO maintenance
- local
noise sources like the Energy Northwest reactor periodically
contribute to ground
motion that reduces IFO range
- in
preparation for line-mitigation work at LHO, Powerflux
"big-ringers-in-coincidence during S5" were logged
- an
updated downtime
pie for H1 was posted
- more
photon calibration investigations: in order to land a calibrator beam
offset from the main laser, and yet not induce rotation, a pcal beam was split
into two and sent to the 2k ETMX to the left and right-hand
sides of the interferometer beam, as viewed from the cornerstation
- beating (up) on the Crab spindown limit: improvements
in 60Hz notch filters should allow us to place a better
upper limit (in the event, say, we don't see anything) on the Crab.
LIGO Livingston
Observatory (LLO) and Interferometer Operations (Giaime)
S5 progress (I.
Yakushin)
Another
week of high microseismic noise. As a result
the range was about 11-12 Mpc most of the time.
However, briefly on Tuesday-Wednesday night the
noise went down and the range jumped to almost 14Mpc.
The
duty cycle for a week was 75%. While LHO was down for commissioning, we used
the time to do upconversion studies. See the links by
Valera:
Upconversion from ground
motion in 1-5 Hz range
Running on all
four
Upconversion investigation
CDS Computing (Lisa Bogue)
- Spent most of the week working on ldap.
- Working with my CDW rep to RMA the control room
monitors that are showing defects.
General Computing
(Dwayne Giardina)
- setup projectors and PCs in the classroom in the new
SEC building and in the multi-purpose room for the grand opening
ceremonies.
- setup projector in the SEC lobby area for Einstein@Home display, driven by a PC in an office closet.
- configured printer in the SEC building, waiting on network
connection - Air conditioning issues in the new SEC building. Trane tech
adjusted software controls, and it is less of an annoyance now.
- continued training our spam filter
- other usual user requests and support
(Shannon Roddy)
- Most of the week has been spent setting up odds
and ends for the SEC grand opening (network, projectors, etc.)
- Changed the configuration of the border routers
to allow point-to-point routing between the old and new subnet.
- Once again got flagged off by LSU on the BGP
configuration. Boyd claims he is
ready, so perhaps an attempt this afternoon or tomorrow.
- Worked on the backup software to figure out why
we were not getting emails. Still
have some unresolved issues, however hopefully we will upgrade soon. Some of the items I have been waiting on
are now here and it will be possible after the SEC opening to rearrange
disk storage here.
- Made some changes to the IDS configuration. Now have all three reporting to a
central DB and front end. More work
yet to do to centralize management of them.
LDAS (Dwayne Giardina)
(I. Yakushin)
Data analysis
Spent
all the week Nov 2-8 at burst f2f meeting, LSC, NRDA.
Presented
the results of the coherent waveburst search on S5
data at the burst f2f and LSC meetings.
(D. Giardina)
- ejected tapes for shipment to CIT, imported and
labeled replacements
- quiet LDAS week, been focused on GC tasks related to
the SEC grand opening.
LLO Outreach (John Thacker)
- extensive preparations for Opening Event, Nov
13th
- scheduling for school field trips continues
- preparations for
three outreach events next week ongoing
Optical
and Mechanical Systems (Coyne)
See Advanced
LIGO
Controls and Data Systems (Bork)
See Advanced LIGO
40-Meter Interferometer (Weinstein)
DC Detection
- Rob has been
working on the DC readout control software. He is using Rolf's simulink model to modify the logic and flow, and
auto-rebuild the front end software. The build was successful and is
running, but testing was hampered by malfunctioning testpoints.
Alex came in and showed Rob how to fix the testpoints,
so tests of the front end software are now in
progress.
- Rob is building a
raft of snazzy new MEDM screens for control of the DC readout front end.
Vacuum Squeezing
- Go and Osamu assembled the homodyne photodiodes
and they tested fine. Go installed a new homodyne detector placed on the
PSL table right before injection, to check the level of squeezing.
- Eugeniy is here from MIT. He and Go installed the
homodyne detectors and re-optimized the homodyne visibility by carefully
balancing the splitting ratio of the homodyne BS. It's close to 99% now.
- Eugeniy and Go set up a Lightwave
120 laser and associated optics for a 610MHz subcarrier
to be used for locking the OPO cavity.
- Go's new mirror translation stage parts have arrived
and are being baked. If the picomotor installed
in the vacuum chamber is really broken, we will ready a spare for installation
the next time we vent.
- Go and Osamu measured the laser intensity noise
at intensities and frequencies of interest for squeezing, with ISS turned
on. They established that the laser is shot-noise limited above 30 kHz
(where the noise spectrum scales with sqrt(power)).
IFO Commissioning,
Electronics, Controls, Computers
- Kirk and Sam have been working on the MC servo.
The OLTF has a gain peak at 100 kHz which prevents us from going to higher
gain. They believe the problem is due to some loss of phase in the FSS
loop, so they will work on realigning that (including the beam path
through the AOM). Once they tweak up FSS alignment, they will return to
increasing the gain on the mode cleaner.
- Kirk reports that after all the work done on the
Mach Zehnder, it now works well, is much more
stable, with 1000x more gain at low frequency. However, there are still
problems with a flaky gain slider; under investigation.
- Sam is working with Kirk, Rob, and Rana to get the common mode servo working. The input
signals and output actuators are still to be defined.
- There was an unexplained change in the MC RFPD
DC level. Steve and Rana took some power
measurements around the PSL table. Suspicion fell on the MC RFPD itself. Rana pulled out the box and found multiple problems,
which he addressed. He also noted several pits on the PD surface. He
figures we can live with it for now, so long as we put the beam un an undamaged part of the surface.
- Rana reports that the ETMY oplev,
which has a HeNe laser instead of the cheap
diode lasers on all the other suspensed optics,
is much more stable than the others. He and Bram improved the mounting of
that laser; the noise spectrum is significantly improved. Steve has
ordered more clamp mounts for more lasers, to be installed on all the test
masses and the BS. Steve and Rana also cleaned
up the layout of the ITMX oplev.
- After all this PSL, Mach Zehnder,
and mode cleaner work, Rana and company plan to
return to lock acquisition work in earnest, in preparation for the DC
readout measurements.
- Bram is working on scripts to autoalign the IFO mirrors and to facilitate manual
alignment. His scripts seem to have a Star Wars theme, for some reason.
IFO Modeling
- Osamu continues to develop the Optickle-based modeling code for AdLIGO,
including quantum noise from all important input ports. He is working on
the addition of quantum noise to the RF sidebands used to sense the auxilliary degrees of freedom, in order to correctly
model their contribution to the noise in the GW channel.
Lab
Infrastructure, Bake lab
- Our OMC photodiode preamp in-vac
nipple is leaking Krypton. Steve reports that the 2e-8Torr amu 84 amplitude droped to
2e-9 Torr in 16 days; the doubly ionized amu 42 fell the same rate. The hydrocarbon level is
normal, not rising .... no
action needed.
- However, Steve points out that we still need a
vacuum valve V1 interlock in case of power failures.
- Roughing pump RP2 did not work for the last pumpdown. Steve is working on the valve for the the old Leybold pump. A
small drypump was send back to Varian for
rebuild.
- The AS ISC table enclosure connection to the
output optic chamber needs some modification to accommodate the OMC
exiting beams. Steve has the parts in the machine shop.
- Steve moved the OMC alignment fiber to the top
of the PSL enclosure, allowing us to once again close the doors
completely.
- Steve continues to monitor the PSL, Mach Zehnder, mode cleaner and IOO power and other signals
to understand the slow drifts. There are so many things evolving in the
lab that it is hard to compare performance.
- Steve continues to monitor the power supplies
for the SUS and other systems, and note any changes larger than 0.2A.
- Bob has been
ordering parts and supplies for various activities around the lab.
Thermal Noise
Interferometer (Black)
After cleaning the SAC
mirrors, Akira was able to obtain 95% visibility in short order. Last week, we
closed the vacuum chamber, pumped out, locked, and took data. The monolithic
rings exhibit none of the low-frequency mechanical modes associated with the o-rings
or the screw-tensioned copper rings. Q damping is good, as expected, and there
appears to be an approximately 2.3% increase in the noise floor. Slawek Gras has offered to calculate the expected noise
floor his model predicts in this regime, to see if it is consistent with our
observations.
We are in the process of
quantifying the Q reduction for a variety of modes.
LASTI (Ottaway)
No report.
CIT Science Group (Weinstein)
Duncan Brown
- Attended inspiral
group face to face
- Attended LSC meeting
- Gave a talk on compact binary searches at
the numerical relativity/ data analysis meeting
____________________________________
Xavier Siemens
- Writing
of cosmic string S4 draft
- Putting
up string webpages in lscdocs/bursts
to prepare for review
- Finished
off cosmic string stochastic paper and submitted to archives:
astro-ph/0610920
- Prepared
a talk to be given at Tufts on Nov 9th: "Gravitational waves from
cosmic (super)strings: Bursts, stochastic background, and experimental
constraints"
- Refereed
a paper for PRD
- fixed bug
in code that computes effective rate starting from an efficiency
curve: when efficiency errors were
large (calibration say), the efficiency could be smaller than 0 or larger
than 1
- looked at
two cosmic string loudest survivors (data and snr
time-series)
- worked
some more on E@H
- attended
meeting with neutron star experts at MIT (part of pulsar F2F), LSC
meeting, numerical relativity meeting
- Stayed at
Tufts working for a few days with the folks there
____________________________________
Kent Blackburn
TclGlobus
TclGlobus 1.5.0 has been released to VDT team. This version only contains
minor configuration changes to support IA64 platform.
OSG
Testing nano HIPE workflow with Pegasus job clustering feature. Still experimenting with the number of
clustered jobs using VDS collapse factor when planning the
workflow.
Current status of running HIPE with 24
partitions at 4 OSG production sites:
osg-gw-2_t2_ucsd_edu: partition 17
OSG_LIGO_PSU:
Completed
Purdue_ITaP: Completed
UWMilwaukee: Completed
Still experimenting LIGO
workflow planner with voms-proxy-init. This feature
is needed for running the planner at Fermilab clusters.
Attended meeting called by OSG extensions
manager and agreed to create a local cache of 700 GB of gravity wave data (L4)
on UCSD OSG cluster for testing workflows without stage-in from CIT.
Provided Ewa Deelman at ISI, with statistics on run-time of nanoHIPE partition 1 including lalapps_tmpltbank
and new_rc_tx_lalapps_tmpltbank jobs.
Visited Fermilab to work with OSG Executive Team on Institutional
statements of work.
Visited University of Wisconsin
Milwaukee to discuss joint activities between the
LIGO PIF and OSG
Discussed Storage, Networking, Security,
Privilege Project with local experts at Fermilab.KK
____________________________________
Stephen Fairhurst
- Attended the inspiral
face to face, LSC meeting.
- Gave a talk at the numerical relativity/data
analysis meeting. It's available at
http://www.lsc-group.phys.uwm.edu/events/nrda/fairhurst.pdf
____________________________________
Eirini Messaritaki
I have been working to complete the S5a BBH
search:
- Running the coincidence step after the latest
bug fix
- Running the
r-squared veto
____________
Igor Yakushin
Data Analysis
Spent all the week Nov 2-8
at burst f2f meeting, LSC, NRDA.
Presented the results of
the coherent waveburst search on S5 data at the burst
f2f and LSC meetings.
____________
Greg Mendell
I attended the pulsar F2F and LSC meetings
at MIT, Nov. 2-5. I am making sure we have SFTs
needed for the next stage of the S5 Einstein@Home search,
and I hope to start some coding tasks for this search this week. I am also continuing work on the S4 PowerFlux, StackSlide, and Hough
paper.
Laboratory
Computing (Anderson)
LDAS Software Systems (Maros)
Efforts continue with compiling LDAS for 64
bit Solaris 10 Opteron. Using the SunStudio
11 compiler suite, most of the LDAS APIs have been compiled. Current efforts
are focused on the datacondAPI. This task is expected
to be completed by early next week.
LDAS was system tested using version
1.8.359. All tests pass. When using tclglobus sockets
are used, the "ALL USER" command does not complete. The debugging output is being examined.
Nightly loop tests are running on ldasbox1,
a 64bit Linux Opteron box.
Running of LLO and LHO createRDS
commands has started on ldas-suntest1, a 64 bit Solaris 10 Opteron
box. Over 3700 jobs have completed so far.
LDAS System Administration (Anderson)
Caltech
(Dan Kozak)
- Got GC backups going to /archive/backup/GC.
- Expanded /home by 5TByte at CIT, staged data
back that had been previously released due to space considerations.
- Helped deal with fallout from power outage at
LLO.
- ID'd tapes for shelf storage at LHO.
- Continue to contact arogan
about his disk space usage.
- Dealt with fallout from power outage in
Powell-Booth.
- Caught user nvf using
A4 data accidentally (old framecache file).
- Sent boilerplate "your jobs can run
faster" message to a few users.
- Started check of MEDIA ERROR tapes at LHO and
fixed two "failed to label" tapes.
- Staged & pinned SFT data to disk at CIT.
- Came up with some ideas about how to increase log_mon's S/N.
- Attempted restore of onasys
file at LLO and discovered that it was being more or less continuously
written to, preventing it from being archived.
- Started looking into the problem of a few bad h(t) files (ongoing).
- Found a dupe line in an L0 .md5 file (the first
in a long time), informed Ben.
(Phil
Ehrens)
- Ongoing testing of cvs
install with pserver
and ext ssh support for sgwb
repository.
- Patched TAR request CGI at Albert Lazzarini's request and worked with Fred Donovan at
MIT to get the new TAR CGI installed there.
- Replaced a number of expiring service certs which were detected when I decided to do a
manual survey. The certcheck scripts at LLO and
LHO do not seem to be sending email properly, or the email is being
misunderstood and ignored by the recipients of the 'root' alias. I am considering changing the email
notification at all sites to an alias for root AND hostcert-ra
to solve this problem, but I am not sure how to diagnose remote email
issues long-term.
- Began studying ipfilters
configuration using ldas-suntest4 as a testbed.
(Erik
Espinoza)
- Built new kernel based on 2.6.18.2 for CIT
Cluster.
- Tested Kernel on one rack (node46-90).
- Conducted A/CNAME alias testing with frog/gsi-ssh.
- Swapped micron memory into node325/node326.
- Swapped power supply in node327, accidentally
pulled power cord on node328 at the same time.
- Shipped dead power supply to ASA.
- Asked Duncan
for info about "ring" code.
- Re-synced and verified kickstart
@ CIT.
- Wrote basic temperature notification script,
writing better script.
- Spec'ing new monitoring system for Data Center.
- Attempted to diagnose hard lockup on frog, no
luck.
- Updated Micron memory wiki
page.
(Stuart
Anderson)
- Ordered new large cluster and frame archive filesystems for LHO/LLO/CIT.
- Ordered new Condor Opteron
servers for LDAS-CIT.
- Updated LSCSOFT repository on LDAS-MIT and
LDAS-CIT clusters.
MIT
(Fred
Donovan)
- hvac issues in cluster room, fans in cluster room,
condor halted (backfills) on 1/2 of nodes.
now temp is fine. goal
is to get hot air exhaust to outside getting SMARTd
on nodes, one by one.
Livingston
(Dwayne
Giardina)
- Ejected tapes for shipment to CIT,
imported and labeled replacements.
Hanford
(Greg
Mendell)
- Some RDS and trend data had failed to transfer
from LLO and LHO to CIT and between the sites, between Oct 26 and Oct 29,
due to problems left over from the recent power failures at LLO and raid
box failures at LHO. All missing
files have been republished and successfully transferred, and all gaps in
the data have been filled in as much as possible, leaving only the real
gaps in the data from the actual times of the power failures or times when
both framebuilders were down at a site. Generation and archiving of raw, trend,
and RDS data is now up-to-date at LHO, LLO, and CIT.
(Ben
Johnson)
- StorageTek should be out here to install the missing 60
slots this coming Tuesday, Nov. 14.
- The Level 1 rsync to
the nodes is proceeding ok. So far, 71 LHO directories have been copied in
the past week, or about 9.5 TB, ~45 tapes worth.
- I've ordered a new workstation to replace my old
laptop. It will have a DVD burner, 960GB of HDD (320GB@RAID1, 640@RAID0),
and assuming Xen works, the ability to run
multiple Linux distributions simultaneously (good for LDG work).
- I've finished a preliminary script for settting dynamic ipfilter
rules for NFS. On my Sol10 laptop, it appears to work as it should, but I
need to test it on olddataserver to make sure it
works with SMF properly.
General
Computing (Wallace)
MIT
(Fred)
- Assisting Marie with LSC conference
- ligo mail server wedged again; removed catfish spamd firewall temporarily, all ligo
mounts hard are now hard nfs, catfish back on
line
- MIT travel-authorization cgi/web
page coding -dovecot on ligo now
- Fixing flexlm
firewall, xtraa disk for KM vacation (so KM can
work while away)
- Research/quotes LASTI computers (xeon vs opteron)
Livingston
(Dwayne)
- Setup projectors and PCs in the classroom in the
new SEC building and in the multi-purpose room for the grand opening
ceremonies.
- Setup projector in the SEC lobby area for Einstein@Home display, driven by a PC in an office
closet.
- Configured printer in the SEC building, waiting
on network connection -Air conditioning issues in the new SEC
building. Trane
tech adjusted software controls, and it is less of an annoyance now.
- Continued training our spam filter
- Other usual user requests and support LLO mail
summary for 2 November - 9 November:
Rejected: 32,523 (59 containing virus)
Accepted: 2,951
(Shannon)
- Most of the week has been spent setting up odds
and ends for the SEC grand opening (network, projectors, etc.).
- Changed the configuration of the border routers
to allow point-to-point routing between the old and new subnet.
- Once again got flagged off by LSU on the BGP
configuration. Boyd claims he is
ready, so perhaps an attempt this afternoon or tomorrow.
- Worked on the backup software to figure out why
we were not getting emails. Still
have some unresolved issues, however hopefully we will upgrade soon. Some of the items I have been waiting on
are now here and it will be possible after the SEC opening to rearrange
disk storage here.
- Made some changes to the IDS configuration. Now have all three reporting to a
central DB and front end. More work
yet to do to centralize management of them.
Hanford
(Christine)
- Continued setting up new servers, disk raid and
tape backup system. Had to buy a
better KVM switch system to put all the servers on one user station. I'm completely re-arranging the server
room to accommodate the new servers and future UPS system. I'm inheriting a Sun E220R and the UPS
system from CDS.
- Purchased a HP ProCurve
530 wireless Access Point to try out.
They are expensive, but have many desirable features.
- Upgraded to Firefox 2
and Thunderbird 1.5.0.8 on all the "community" computers.
CIT
(Mike)
- Larry and I worked on DCC servers with FileHold engineers setting up SQL server to run some
performance tests; this was to make sure our network is not the issue with
the slow performance of the web services for FileHold.
- Setup a Sold Works workstation to load PDMWorks server 2007 to run some tests to insure all
users are able to connect to the vault. We are upgrading from 2005 to
2007.
- Finished testing the software on the llpdmworks server it looks like I found backup
software that should do the job for us.
- Regular maintenance on mail servers with Larry.
- Continued work on the Spam Filters searching for
false positives.
(Christian)
- -Ed Jasnow- Installed
new DVD player and configured loaner laptop for Ed to use on travel.
- Replaced 5-port switch in Florence and dotıs office.
- Toner cartridge replacements- Irene Baldon, 40 Meter and Millikan.
- Computer move- Dorothy Lloyd and Cindy Akutagawa switch offices.
- Configured and added memory to new Mac Mini for
testing purposes
for the LDAS group.
- Worked on the Spam Filters with Mike and Larry
-Other misc.: Continued onsite software/phone support
(Veronica)
- LIGO:
Most time went to developing the LAAC website applications. Updates of the PAC meeting website. User support. Helped Julie to set up a webpage for
Jay. Prepared a set of
high-resolution images for ANU.
- LSC:
Updates of the LSC-related mailing lists. Updates of the website of
preprints. Update of the database
of technical papers. Continued
support of the LSC meeting website.
(Larry)
- Continue working different procurement related
issues. In the process of buying more pocket
drives for those that travel. Purchased a number of misc. tools and
support items. Resolved some P-card
issues, mostly problems with a double billing mistake made by the
bank. Assisted a couple of users in
getting information so they can decide what they need for their computer
upgrades.
- Worked with Christian on a Mac Mini that is
going to be used for testing some of the in-house software. So far, the
most interesting part of the setup is that you need a putty knife to open
the unit up to install the memory. The unit should be on-line early next
week.
- Assisted Christian in the computer moves for
Cindy and Dot.
- Started work on getting Bruce Sears machine ready
to become a standalone unit.
- Repaired one of the E2E machines that had
suffered a minor s/w glitch.
Remounting things solved the problem.
- Assisted the DCC with a number of items. It
appears that some progress has been made towards resolving some of the
issues found with the FH software. (See Linda's report for more details)
-Assisted Veronica with a couple of web items.
- Finished the computer connection and switch
modifications Shannon needed for his
setup.
- Made a number of modifications to different
tables; alias, DNS, host... for different groups and users.
- Finished the refurbish of the plotter. This
helped in some aspects but it is still have some striation issues.
- Assisted in resolving some of the logistical
issues for the different conferences and meetings taking place throughout
LIGO.
- Worked with Christian and Mike on the spam
filters. Presently, we are still
blocking over 10K messages a day with just about the same amount making it
through.
- Regular user support with applications, network
and printers.
(Bruce
Sears)
- -iLog Maintenance: (0.5 days), General iLog maintenance (user adds,
keyword adds, systems work, etc.)
Advanced LIGO and
Supporting R&D (Shoemaker)
Advanced LIGO
Systems
Modeling and Simulation (Hiro Yamamoto)
Static IFO simulation (Hiro)
Calculated recycling gain of H1 using old
FFT using phasemaps and TCS corrections included. To account for the high recycling gain of
45-55, the average miscellaneous loss per mirror needs to be ~25 ppm. This is
consistent with the mirror scattering loss measured in lab.
Fast simulation of Dual Recycled
Michelson Cavity (Hiro,
Keiko)
The modal model code calculating the field
evolution quickly in a FP cavity has been almost completed. To compute in
time domain calculation speed gain, 10 times calculation takes about 30 second
and 6 minutes for 100 times calculation using Mathematica
on ren (3GHz Intel linux).
Now the independence on the iteration number N is being validated for some
conditions such as the mirrors have velocities, mirrors have
tilt angles.
Modeler (Hiro,
Bruce)
Continuing
work on user defined primitives in the modeler code
Mechanical Simulation for advanced LIGO (Sany and SLU team)
Vallerio has provided
a revised statespace module to Sany's
group. They can now include vertical mode, in addition to horizontal mode
to their HAM-SAS module. Vertical mode
is important for rotational DOF. They
have some problem running the e2e simulation code, and Hiro
is helping to find out the cause.
ALFI : e2e front end (Bruce, Melody)
Continuing in the
graphical implemention for the new User Defined
Primitive. Finished working
on providing the default values for parameter declarations. Next tasks are to provide ports with default
values and assigning graphical icons to the UDPs.
Seismic
Isolation
BSC
Seismic Isolation Testing
The
actuators have been reassembled and gaps reset on the locators. There is no
longer any evidence of rubbing.
Quotes
for cleaning of the large machined parts have been promised next week.
A
listing of design changes needed for the final design has been placed on the
SEI website.
HAM
Single Stage Design
A
contract has been issued to High Precision Devices for the design of the
single stage HAM. A kickoff meeting is scheduled for 11/15.
From: Dennis Coyne coyne@ligo.caltech.edu
Subject: minutes
HAM-SAS 8-Nov meeting
Chiara, Riccardo,
Alberto, David S., Dennis, Valerio, Ben
1) fabrication status
started assembling the first filter today
two filter baseplates
were found tarnished after baking (perhaps related to moisture or solvent &
aluminum foil oxidation??) -- does not shown up on
FTIR -- removed by etchant
the large oven is now working, but dewar is 'acting up', so not likely to start bake today
in a couple of days G&M will
receive large parts from Soldi
coil status: several of the coils have
been baked
next week Ric
will be at Univ of Pisa (where coiler is located, so
will get some more coils completed)
Virginio & Valerio will also be at
G&M next week
Myron
McInnis may visit LASTI to help & learn what is soon to arrive to LASTI
clean room structures are in place
(tables, sawhorses, etc.)
elevator & crane nearly completed
FTIR
testing:
Ric
et. al. have worked out the
basic methods for sampling, evaporating/concentrating and measurement
have found that if the solvent sample
contacts the latex gloves (~1 sec in ~100 cc), one gets a signature in the FTIR
spectrum for the latex
They have
found that the parts if properly cleaned show no signature above the background
Bob Taylor
has the results of the JPL FTIR testing on some sample parts cleaned by Soldi (see attached report)
Each part
was swabbed over the entire part, inside threaded holes and the smooth holes,
also the entire outside surface and edges were swabbed for measurement (attached
is a picture of the parts)
Our
cleanliness requirements (E960022-B), restated are (G050557-00):
Achieve a Non-Volatile Residue (NVR) level of A/50 or better
(per MIL-STD-1246C or IEST-STD-CC1246D) on piece parts before clean assembly.
NVR level A/50
corresponds to 0.02 micro-gm/cm^2, or ~0.2 monolayer. Three of the four samples
were at level A/50 -- one was at level A/25 (not quite meeting the
requirement).
Bob is now testing with an RGA (before and after baking) -- should have results
soon -- this provides a calibration (of sorts)
G&M *may* submitted all documentation for additional costs -- check with Ed
still aiming to ship at end of Nov -- should take 10-14 days in transit
2) LASTI
test plan
pending actions:
a) Dave O.: triple suspension to be installed on the HAM-SAS table initially,
or after some testing of HAM-SAS by itself?
b) Dennis: prove that air bearings are not needed on the piers
c) Dennis & Dave: draft evaluation criteria for review by the group and to
see if the test plan (and simulation plan?) are
complete and timely for a decision in March
3) electronics
Ben sent out 9 types of bds to PCB express (qty of 2
to 4 each)
in-vacuum break-out bd quote received
finishing parts list -- will send to Digikey for
parts ordering
will then do front & back panel layouts; then test plans
kapton in-vacuum wire to connector PCBs (small stamp
size) -- need mechanical support design -- Ben will do this when he returns
from vacation
AML stepper motor drivers (SMD2) -- AML says they may need to rework (depending
on serial numbers) in order to be "controlled" (not sure what this
means)
G&M don't have the capability to bake the AML stepper motors by
self-heating -- Ric will consider sending the 8 (?)
stepper motors to Bob Taylor for baking at Caltech
accuglass order has been placed -- will be in a few
weeks to delivery
Ben out next week on vacation (Todd will have instructions in the interim to
begin stuffing) -- Ben will consider whether to send some bds
out to a stuffing house (small qty & simplicity of the bds
make this a less attractive option)
week of 12/4 Ben & Jay are going to LASTI to install
week before Rolf will go to LASTI
4) simulation
finally solved problem with position actuated model in
E2E -- results seem correct & match Maple results
will now correct vertical stage -- then can study interaction of SAS &
triple SUS controls
Meeting at Caltech on a
range of optics issues.
From: Liyuan
Zhang zhang_l@ligo.caltech.edu
Two 1" substrates have been scanned
this week with current set-up (BRDF@ 45 degrees), both of them showed
scattering points, of which the number
(1~3/cm^2) is much less than what we observed on the 1" mirror surface.
Because the surface reflection of substrate is only 4% and also the result may include
scatters in the bulk and on the other side, it's too early to say something.
Let's see what we'll have when one substrate and one 1" mirror are coated
with the gold film.
Suspension
From: k mailand
<kmailand@ligo.caltech.edu>
The CES shop has completing the last arm
section, and is modifying the fixture rotator assembly X-axis plate to match
the arm. The lift assembly frame is in the CES shop. The
construction of the controller for the lift assembly linear drives is in
progress. I'm working on the LASTI
'conveyor' structure for the sus installation,
this should be in CES by 11-17.
For additional information about this
report, contact Albert Lazzarini or Phil Lindquist
